Alert archive / Michigan / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 6, NWS Detroit, MI

June 19, 2021Lenawee County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Jun 19, 2021, 10:02 PM EDT for Lenawee County, Michigan. It was in force for 58 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 19, 2021, 10:02 PM EDT (02:02 UTC)
Expired
Jun 19, 2021, 11:00 PM EDT
In force
58 min
Issued by
NWS Detroit, MI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Lenawee County, MI

The radar

The Detroit radar (KDTX), 99 km from the middle of the area, began a volume at 02:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 19, 10:08 PM EDTHAIL 45 Nne Prattville, MISEVERAL PICTURES OF LARGE 3-4 INCH HAILSTONES SHARED VIA SOCIAL MEDIA.
Jun 19, 10:10 PM EDTHAIL 3Hudson, MITEA CUP SIZED HAIL - PHOTO SUBMITTED VIA TWITTER WITH RULER FOR REFERENCE
Jun 19, 10:14 PM EDTHAIL 2.753 E Hudson, MIBASEBALL SIZED HAIL - PHOTO SUBMITTED VIA TWITTER

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 2.0 hours before the alert went out and 103 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Detroit, MI at 00:00Z on 2021-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 36 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 00:00Z on 2021-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
36 J/kg
Mixed-layer CIN
-214 J/kg
Mixed-layer LCL
969 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
264 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

092 
WUUS53 KDTX 200202
SVRDTX
MIC091-200300-
/O.NEW.KDTX.SV.W.0006.210620T0202Z-210620T0300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Detroit/Pontiac MI
1002 PM EDT Sat Jun 19 2021

The National Weather Service in Detroit/Pontiac has issued a

* Severe Thunderstorm Warning for...
  Lenawee County in southeastern Michigan...

* Until 1100 PM EDT.

* At 1001 PM EDT, a severe thunderstorm was located near Hudson,
  moving east at 35 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Hudson around 1010 PM EDT.
  Clayton around 1020 PM EDT.
  Adrian around 1040 PM EDT.
  Tecumseh around 1050 PM EDT.
  Deerfield and Britton around 1100 PM EDT.

Other locations impacted by this severe thunderstorm include Seneca,
Manitou Beach-Devils Lake, Macon, Lime Creek, Canandaigua, Ridgeway,
Palmyra, Tipton, Sand Creek and Rome Center.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4207 8436 4208 8377 4180 8377 4172 8436
TIME...MOT...LOC 0201Z 253DEG 29KT 4183 8441 

HAIL...1.00IN
WIND...60MPH
 
$$

DG
4 follow-up statements
731 
WWUS53 KDTX 200216
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
1016 PM EDT Sat Jun 19 2021

MIC091-200300-
/O.CON.KDTX.SV.W.0006.000000T0000Z-210620T0300Z/
Lenawee MI-
1016 PM EDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT
FOR LENAWEE COUNTY...

At 1016 PM EDT, a severe thunderstorm was located over Clayton, or
near Hudson, moving east at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

This severe storm will be near...
  Adrian around 1040 PM EDT.
  Tecumseh around 1050 PM EDT.
  Blissfield around 1055 PM EDT.
  Deerfield and Britton around 1100 PM EDT.

Other locations impacted by this severe thunderstorm include Seneca,
Manitou Beach-Devils Lake, Macon, Canandaigua, Ridgeway, Palmyra,
Tipton, Sand Creek, Rome Center and Jasper.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4208 8377 4180 8377 4174 8432 4189 8436
      4207 8436
TIME...MOT...LOC 0216Z 254DEG 28KT 4186 8426 

HAIL...1.00IN
WIND...60MPH
 
$$

DG
410 
WWUS53 KDTX 200232
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
1032 PM EDT Sat Jun 19 2021

MIC091-200300-
/O.CON.KDTX.SV.W.0006.000000T0000Z-210620T0300Z/
Lenawee MI-
1032 PM EDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT
FOR LENAWEE COUNTY...

At 1031 PM EDT, a severe thunderstorm was located near Adrian, moving
east at 35 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

This severe storm will be near...
  Adrian around 1040 PM EDT.
  Blissfield around 1055 PM EDT.
  Deerfield and Britton around 1100 PM EDT.

Other locations impacted by this severe thunderstorm include Manitou
Beach-Devils Lake, Macon, Ridgeway, Palmyra, Tipton, Sand Creek, Rome
Center, Jasper, Weston and Riga.

A second strong thunderstorm will also track into the Addison and 
Cement City area by around 1045 pm and bring the potential of gusty 
winds and hail.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4208 8377 4180 8377 4176 8410 4183 8419
      4189 8417 4194 8436 4207 8436
TIME...MOT...LOC 0231Z 260DEG 29KT 4187 8409 

HAIL...0.75IN
WIND...60MPH
 
$$

DG
891 
WWUS53 KDTX 200249
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
1049 PM EDT Sat Jun 19 2021

MIC091-200300-
/O.CON.KDTX.SV.W.0006.000000T0000Z-210620T0300Z/
Lenawee MI-
1049 PM EDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT
FOR NORTHERN LENAWEE COUNTY...

At 1048 PM EDT, a severe thunderstorm was located near Blissfield,
moving east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

This severe storm will be near...
  Deerfield and Britton around 1100 PM EDT.

Other locations impacted by this severe thunderstorm include Macon,
Riga, Springville, Cambridge Junction, Ridgeway, Palmyra and
Holloway.

Another strong thunderstorm will bring gusty winds to the Cement 
City area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4208 8377 4180 8377 4180 8395 4184 8401
      4190 8397 4204 8395 4200 8436 4207 8436
TIME...MOT...LOC 0248Z 254DEG 29KT 4190 8390 

HAIL...<.75IN
WIND...60MPH
 
$$

DG
618 
WWUS53 KDTX 200256
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
1056 PM EDT Sat Jun 19 2021

MIC091-200305-
/O.EXP.KDTX.SV.W.0006.000000T0000Z-210620T0300Z/
Lenawee MI-
1056 PM EDT Sat Jun 19 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LENAWEE COUNTY WILL
EXPIRE AT 1100 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. 

However, gusty winds are still possible with this thunderstorm as 
well as with additional storms that are moving east back into the 
region.

LAT...LON 4208 8377 4180 8377 4180 8395 4184 8401
      4190 8397 4204 8395 4200 8436 4207 8436
TIME...MOT...LOC 0255Z 253DEG 29KT 4191 8387 

$$

DG

The office that day

Everything else NWS Detroit, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 19, 10:57 PM EDTSpecial Weather StatementDTXMonroe63 min
Jun 19, 11:04 PM EDTSpecial Weather StatementDTXWashtenaw56 min
Jun 19, 11:09 PM EDTSpecial Weather StatementDTXLenawee51 min
Jun 20, 3:57 AM EDTGale WarningDTX42 hr
Jun 20, 3:57 AM EDTSmall Craft AdvisoryDTX54 hr
Jun 20, 7:59 PM EDTSpecial Weather StatementDTXLenawee46 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2021Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.